Covering for steam-pipes



(No Model.)

A. W. SHEARER. GOVBRING FOR STEAM PIPES.

Patented Sept. 26, 1893.

W//zeare ,u e w, e, e.

UNITED STATES yPATENT OFFICE.

ALBERT w. si-IFARFR, oF OMAHA, NFBnAsKA.4

COVERING FOR SIIEAM-PIPES.

SPECIFICATION forming part of Letters Patent No. 505,560, datedSeptember 26, 1893. Application filed February 18, 1891. Renewed July31, 1893. Serial No. 482,017. "4(No model.)

To all whom it may concern:

Beit known that I, ALBERT W. SHEARER, a citizen of the United States,residing at Omaha, in the county of Douglas and State of Nebraska,haveinvented a new and useful Covering for Steam-Pipes, of which thefollowing is a specification.

This invention relates to an improved nonconducting covering for steampipes,- boilers and the like, and it has for its object to provide' acovering which shall be simple in construction, inexpensive and easilyapplied, which when necessary may be readily removed in order to affordaccess to the pipe or boiler and which shall be thoroughly efficient toprevent loss of heat by radiation.

With these ends in'view the invention consists in the improvedconstruction, arrangement and combination of parts which will behereinafter fully described and particularly pointed out in the claims.

In the drawings hereto annexed: Figure l is a longitudinal sectionalview of a portion of a steam pipe provided with an improved covering.Fig. 2 is a transverse sectional view of the same. Fig. 3 is an endview. Fig. 4 is a perspective detail of one of the semirings.

Like numerals of reference indicate like parts in all the figures.

l designates a steam` pipe of ordinary construction. This pipe is firstcovered with asbestus sheeting as shown at 2, said sheeting being evenlypasted on the pipe in suitable lengths.

Adjacent to the sheeting 2 are placed the semi-rings 3 which are made ofsuitable size to encircle the pipe l having the covering 2 when saidsemi-circular disks are placed with their ends together as clearly shownin Fig. 2. Said semi-rings may be made of a suitable mixture ofasbestus, cement and magnesia, molded to the desired size and shape; ifdesired strips, as t of corrugated sheet iron may be employed toform abase for the said semi-rings upon which the plastic material of whichthey are formed may be molded, thus insuring additional strength. i

Adjacent to the completed rings or disks 3 a covering 5 of wool, felt,paper, `or similai-` material is placed, said covering being arranged insections of three feet long, more or sition.

less. This covering is wound around the rings or disks 3, twelvethicknesses, more or less, being employed, and said covering is securedby means of wires as shown at 6. Over the joints at the meeting ends ofthe sections or covering 5 are pasted the strips '7 of as bestus, and anoutside Wrapper, 8, of felt, pa per, or similar material is then pastedin po- This is nally covered by means of a wrapper 9 of canvas which islikewise pasted smoothly in position, and this may be inally covered bymeans of one or more coats of reproof paint. The ends of the pipe orboiler may be,A covered by means of semi-circular finishing disks as l0.

The advantages of my invention will be readily `understood from theforegoing description taken in connection with the drawings heretoannexed. The semi-rings 3 are fitted loosely so as to leave a column orstratum of dead air aroundthe pipe (as seen by the black ring in Fig.2.)` This adds to the non-conducting qualities of the covering and italso permits the pipe to expand and conn tract `freely without crackingor in any way injuring the covering.

The general construction and arrangement of the covering is simple andinexpensive and of such a nature as to permit a section or portion of`the covering to be readily detached when desired in order to affordaccess to the pipe or boiler cover thereby.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-f l. In a covering for steam pipes boilers and thelike the combination `with the pipe having a covering of asbestus, ofthe semi-rings molded ofplastic material surrounding the same and anouter non-cond noting covering, substantially as set forth.

2. The combination of theinner covering of asbestus, the semi-rings of aplastic composition, a covering Wound upon the same and secured by meansof wires, strips of asbestus pasted over the joints at their meetingedges of such covering and the outer covering of felt, or equivalentmaterial and canvas, substantially as and for the purpose set forth.

3. In a covering for steam pipes, boilers and the like, the hereindescribed sectional rings formed of a plastic composition molded uponIOO base strips of corrugated sheet iron, substantially as and for thepurpose set forth.

4. The herein described nonconducting covering for steam pipes, boilersand the like the same consisting of an inner covering of asbestus,pasted upon the pipe or boiler, the sectional rings molded of a plasticcomposition, a covering of felt, paper or equivalent material Woundspirally around the said rin gs, strips of asbestus, pasted over thejoints at the meeting ends of said spiral covering strips,

a Wrapping of felt, paper or equivalent material, an outer covering ofcanvas and a coating of reproof paint, substantially as and for thepurpose set forth.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in presence of two witnesses.

ALBERT W. SHEARER.

Witnesses:

GEORGE S. GREEN, W. W. HAMILTON.

